I would put a D7 in the chase vehicle not in the plane, since it can't act as a digi. Why manually relay the position if you don't have to?
Instead, I would put a simple digi in the plane (such as a KPC3 and an HT) and a D7 and GPS with a map display in the chase vehicle. This way the position can be relayed to the chase vehicle and displayed directly on the map. If you use a GPS that plots routes, it will tell you how to get there from where you are...
73,
Paul, W2PI
----- Original Message -----
From: Richard Amirault <ramirault at erols.com>
Date: Friday, October 28, 2005 11:37 am
Subject: Re: [aprssig] Airborne APRS
> Yes, that is what I was going to suggest as well. You would not
> need an
> externam antenna .. and as I understand it you would need to go
> thru a LOT
> of hurdles to mount an antenna outside the aircraft. You would
> not even
> need to have a GPS attached to the D7a ... except it would help
> if you
> wanted to fly towards the target ;-) but if you just wanted to
> receive and
> get a lat/lon for relay to the ground .. a D7A would be just the
> ticket.
> Richard Amirault N1JDU
> Boston, MA, USA Go Fly A Kite
> ----- Original Message -----
> From: "Scott Miller"
> Subject: Re: [aprssig] Airborne APRS
>>> >I haven't done this specifically, but I've operated from a 172
> before. I'd
> >suggest a Kenwood TH-D7A handheld - that should be all you need
> to receive
> >and decode a position. If permanently-mounted antennas aren't an
> option, a
> >rubber duck stuck to the inside of the window with a suction cup
> might
> >work. Eventually the plane had permanent antennas installed, but
> I can't
> >remember what type.
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